Install Instructions

ManualsBrandsWatts ManualsBackflow Preventers2" Double Check Detector Assembly (007M1DCDA-OSY-CFM)

RP/IS-007DCDA

007DCDA Size: 2

⁄2" (65mm)007M1DCDA-OSY Size: 2" (50mm)

Installation, Maintenance, & Repair

Series 007DCDA

Double Check Detector Backflow Preventer Assembly

Models & Size Included

• 007M1DCDA 2" (50mm)

• 007DCDA 2" (50mm)

• 007DCDA 2

⁄2" & 3" (65 & 80mm)

The Series 007DCDA Double Check Detector Assembly is

specifically designed to protect against possible backpres-

sure and backsiphonage conditions for non-health hazard

(i.e., pollutant) application in accordance with Local Govern-

ing Water Utility Code. This device assembly is primarily

used on potable drinking water systems where Local Gov-

erning Code mandates protection from non-potable quality

water being pumped or siphoned back into the potable

water system.

Testing

- Field Testing Procedures for Watts TK9A, TK-99E and

TK-99D

- Backflow Repair Kits and Service Parts Catalog

- WattsBox Insulated Enclosure Sheet

For technical assistance or copies of the following cut sheets,

please contact your local Watts Representative.

IMPORTANT: INQUIRE WITH GOVERNING AUTHORITIES

FOR LOCAL IN STAL LA TION RE QUIRE MENTS

You are required to thoroughly read all installation instructions and

product safety information before beginning the installation of this

product. FAILURE TO COMPLY WITH PROPER INSTALLA-

TION AND MAINTENANCE INSTRUCTIONS COULD RESULT

IN PRODUCT FAILURE WHICH CAN CAUSE PROPERTY

DAMAGE, PERSONAL INJURY AND/OR DEATH. Watts is not

responsible for damages resulting from improper installation and/or

maintenance.

Local building or plumbing codes may require modiﬁcations to the

information provided. You are required to consult the local building

and plumbing codes prior to installation. If this information is not

consistent with local building or plumbing codes, the local codes

should be followed.

Need for Periodic Inspection/Maintenance: This product must

be tested periodically in compliance with local codes, but at least

once per year or more as service conditions warrant.

If installed on a ﬁre suppression system, all mechanical checks,

such as alarms and backﬂow preventers, should be ﬂow tested

and inspected in accordance with NFPA 13 and/or NFPA 25.

Corrosive water conditions, and/or unauthorized adjustments or

repair could render the product ineffective for the service intended.

Regular checking and cleaning of the product’s internal compo-

nents helps assure maximum life and proper product function.

WARNING

Summary of content (4 pages)

PAGE 1
Installation, Maintenance, & Repair Series 007DCDA RP/IS-007DCDA Double Check Detector Backflow Preventer Assembly Models & Size Included • 007M1DCDA 2" (50mm) • 007DCDA 2" (50mm) • 007DCDA 21⁄2" & 3" (65 & 80mm) 007M1DCDA-OSY Size: 2" (50mm) ! 007DCDA Size: 21⁄2" (65mm) WAR NI NG You are required to thoroughly read all installation instructions and product safety information before beginning the installation of this product.
PAGE 2
Installation Instructions Series 007DCDA Annual inspection of all water system safety and valves is required. Regular inspection, testing and cleaning assures maximum life and proper product function. The Series 007DCDA may be installed in either a horizontal or vertical-up orientation for service on commercial potable water or fire sprinkler systems. Supply pipe lines should be thoroughly flushed to remove foreign material before installing the unit that may cause unnecessary check fouling.
PAGE 3
Servicing Instructions Horizontal Installation Series 007DCDA 1. Remove cover bolts and cover. Main Meter Strainer Watts 2" (50mm) 007M1DCDA Vertical-Up Installation 2. R emove the retainer from the body bore. The check valve modules can now be removed from the valve by hand or with a screwdriver. 3. T he check seats are attached to the cage with a bayonet type locking arrangement. Holding the cage in one hand, push the seat inward and rotate counterclockwise against the cage.
PAGE 4
Replacement Parts Series 007DCDA Meter Bypass Assembly Kits Model When ordering, specify Ordering Code, Kit number and Valve Size. Ordering code Kit No. mm LEAD FREE * First Check Kit LEAD FREE * 007M1DCDA/ 0887980 RK 007DCDA CK1 2 50 007DCDA 65, 80 007DCDA 0887965 RK 007DCDA CK1 21⁄2, 3 65, 80 007DCDA 0794007 LFRK 007DCDA CK1 21⁄2, 3 Kit consists of: seat, seat O-ring, disc assembly, spring, spring retainer, check cage and cover O-ring.